TWI469025B - Touch panel and its dynamic drive control method - Google Patents

Description

Touch panel and dynamic driving control method thereof

The invention relates to a dynamic driving control method for a touch panel, in particular to a dynamic driving control method for a touch panel capable of dynamically adjusting the resolution, scanning frequency, signal gain or trigger condition of the touch panel.

Since Apple introduced the iPhone in 2007, its multi-touch function has been well received by consumers. Since then, touch technology has been hit by the consumer electronics market, where mobile phones, lithographic computers and other products are all invisible. Capacitive touch technology.

Please refer to FIG. 1( a ) to FIG. 1( c ) , which respectively illustrate the operation of the conventional projected capacitive touch panel at different distances D1 , D2 and D3 . In the current operation mode of the Projected Capacitive Touch (PCT), the sensing signal (which can be a voltage or current mode) on the equivalent capacitance of the sensing area of the touch panel 200 can be divided into a non-touching area. And an unsteady zone and a touch zone, a threshold will be located above the unstable zone, and above the threshold, the touch zone is entered. As shown in FIG. 1( a ), when the touch panel 200 and the finger 300 have a D1 distance, since the sensing signal on the equivalent capacitance of the sensing area of the touch panel 200 is lower than the threshold, the touch panel 200 is There is no touch action; as shown in FIG. 1(b), when the touch panel 200 and the finger 300 have a D2 distance, wherein D2 < D1, the sensing signal on the equivalent capacitance of the sensing area of the touch panel 200 will be As a result, there is no touch action on the touch panel 200. As shown in FIG. 1(c), when the touch panel 200 and the finger 300 have a D3 distance, D3= 0 (ie, touch to the touch panel 200), the sensing signal on the equivalent capacitance of the sensing area of the touch panel 200 will increase above a threshold, and when entering the touch area, the touch panel 200 will be reversed. The touch action should be performed to perform related actions.

In the above-mentioned conventional projected capacitive touch panel, the touch panel 200 has a fixed resolution, a scanning frequency, and a high signal gain, so that the touch panel 200 maintains a certain distance at a distance D2, D1 or D0. The resolution and the scanning frequency will cause the power consumption of the touch panel 200 during long-term operation and standby, and the trigger value setting needs to be performed through cumbersome experiments to overcome the dynamic noise generated by the LCD module and the circuit system. interference.

Please refer to FIG. 2( a ) to FIG. 2( b ) , wherein FIG. 2( a ) is a schematic diagram showing the operation of a conventional self-capacitance driven projected capacitive touch panel with Z-axis sensing; FIG. 2( b ) It is known that the Z-axis sensing mutual capacitance drives the projected capacitive touch panel. As shown in FIG. 2( a ), the current self-capacitance driving projection capacitive touch panel 400 has the function of Z-axis sensing, but has: 1. fixed sensor resolution; 2. non-contact time Single point detection; 3. Two sets of detection circuits and calculation algorithms are required; and 4. Shortcomings such as power consumption during standby. As shown in FIG. 2(b), the current mutual capacitance driving projected capacitive touch panel 400 operates, although it also has a Z-axis sensing function, but has: 1. fixed sensor resolution; 2. non-contact Multi-point detection; 3. Two sets of detection circuits and calculation algorithms are required; and 4. Shortcomings such as power consumption during standby are really a shortcoming.

In addition, the conventional touch panel has only a fixed signal gain and a fixed trigger value. FIG. 3 is a schematic diagram showing a conventional driving control method of the touch panel maintaining the original gain at a D1 distance. As shown in FIG. 3, when the distance is D1, the sensing signal on the sensing area capacitance is lower than the critical value, so that no touch is generated; when the distance is close to the touch panel 200, the sensing area is capacitive. The inductive signal will be above the threshold and will be triggered.

An object of the present invention is to provide a dynamic driving control method for a touch panel, which can dynamically adjust the resolution of the touch panel.

An object of the present invention is to provide a dynamic driving control method for a touch panel, which can dynamically adjust the signal gain of the touch panel.

An object of the present invention is to provide a dynamic driving control method for a touch panel, which can dynamically adjust a scanning frequency of the touch panel.

An object of the present invention is to provide a dynamic driving control method for a touch panel, which can dynamically adjust a trigger value of the touch panel.

An object of the present invention is to provide a dynamic driving control method for a touch panel, which can be properly matched with various dynamic driving values, and can increase the motion sensitivity and the power saving function, and can also be directed to the direction of the vertical sensor (Z). Axis), for touch motion detection, provides a more diverse human interface (GUI) software operation.

To achieve the above objective, the present invention provides a dynamic driving control method for a touch panel, which includes the following steps: providing a dynamic resolution control circuit that enables a touch panel to have a first resolution and a second resolution And providing an inductive signal gain control circuit for providing a first gain and a second gain corresponding to the first resolution and the second resolution to the touch panel, wherein an object and the When the touch panels are less than one distance apart, the resolution of the touch panel changes from the first resolution to the second resolution.

In order to achieve the above purpose, the present invention provides another dynamic driving control method for a touch panel. In a first stage, a touch panel is operated under a condition of a first gain and a first scanning frequency, and When the object is less than a distance from the touch panel, the touch panel enters a second stage; in the second stage, the touch panel is reduced in unit sensing area and operates on a second gain and a second scan. Under the condition of aiming frequency, the sensing block is locked to perform accurate coordinate position calculation when the object touches the touch panel.

In order to achieve the above, the present invention provides a touch panel system, including: a touch panel having a glass, an array of sensors, and a display panel, wherein the sensor array is disposed in a matrix form One side of the glass is used to sense the signal change when an object is approaching, and the glass is located on the display panel; a dynamic resolution control circuit coupled to the sensor array enables the touch panel to have a first a resolution and a second resolution, and outputting X and Y coordinate signals. When an object is less than a distance from the touch panel, the resolution of the touch panel changes from the first resolution to the second The first gain and the second gain corresponding to the first resolution and the second resolution are coupled to the X, The Y coordinate signal is amplified; a analog to digital conversion circuit is coupled to the inductive signal gain control circuit to perform analog to digital conversion on the amplified X and Y coordinate signals; and a digital signal processing And coupled to the analog-to-digital conversion circuit for processing X and Y coordinate signals converted into digital form; and a controller coupled to the digital signal processor to receive the X, Y coordinate signals, and Transfer to a graphical user interface to execute the corresponding instructions.

The detailed description of the drawings and the preferred embodiments are set forth in the accompanying drawings.

Please refer to FIG. 4 , which is a flow chart of a dynamic driving control method for a touch panel according to a preferred embodiment of the present invention. As shown in the figure, the dynamic driving control method of the touch panel of the present invention is exemplified by a two-stage precision driving, but is not limited thereto, and includes the following steps: providing a dynamic resolution control circuit 10, which can A touch panel 30 has a first resolution and a second resolution (step 1); and an inductive signal gain control circuit 40 is provided to provide one of the first resolution and the second resolution. a first gain and a second gain are applied to the touch panel, wherein when the object 20 is less than a distance from the touch panel 30, the resolution of the touch panel 30 changes from the first resolution to the Second resolution (step 2).

In the first step, the dynamic resolution control circuit 10 can change the resolution of the touch panel 30 from a first resolution to a first time when the object 20 is less than a first distance from the touch panel 30. The sensation of the object 20 is, for example, but not limited to, a stylus that is electrically conductive to a finger or a tip. The touch panel 30 is, for example but not limited to, a capacitive touch panel, and can be self-capacitive touch. A panel or mutual capacitance touch panel with multi-touch function. The first distance is, for example but not limited to, 2 cm, and the first resolution is, for example but not limited to, 1x1 or 2x3, the second resolution is, for example but not limited to, 6x3, and each block has a resolution of 10x5, and In the first resolution, the touch panel 30 has high sensitivity and a low scanning frequency (for example, but not limited to, 1/60 second per frame rate), in the second analysis. The touch panel 30 has a low sensitivity and a high scanning frequency (for example, but not limited to, 100 times per 1/60 second).

In the step 2, the gain control circuit 40 provides a first gain and a second gain to the touch panel 20 at the first resolution and the second resolution, wherein an object 20 and the touch When the control panel 30 is less than a distance, the resolution of the touch panel 30 is changed from the first resolution to the second resolution; wherein the gain control circuit 40 is an analog signal gain control circuit, the first Gain > This second gain. And at the second resolution, the dynamic resolution control circuit 10 further provides a sensor maximum resolution when the object 20 touches the touch panel 30, that is, operates under a minimum unit component area of the inductor, so that Accurate coordinate detection of the touch position, such minimum sensor unit structure, signal gain control and scanning frequency, with the best touch value setting, can avoid the noise of the touch panel 30 to improve the touch The overall signal-to-noise ratio (S/N) of the system.

The operation principle of the dynamic driving control method of the touch panel of the present invention will be described below by way of an example. Referring to FIG. 5( a ) to FIG. 6( b ), FIG. 5( a ) illustrates a dynamic driving control method of the touch panel according to a preferred embodiment of the present invention, maintaining a 2×3 scanning frequency during the first stage driving. FIG. 5(b) is a schematic diagram showing the dynamic driving control method of the touch panel according to a preferred embodiment of the present invention becomes a 10x5x2 scanning frequency when driven in the second stage; FIG. 6(a) shows another comparison in the present case. The dynamic driving control method of the touch panel of the preferred embodiment maintains a 1x1 scanning frequency during the first stage driving; FIG. 6(b) illustrates the dynamic driving control method of the touch panel according to a preferred embodiment of the present invention. The two-stage drive becomes 6x3, and each block has a schematic diagram of the scan frequency of 10x5 resolution.

Taking the two-stage precision driving as an example, as shown in FIG. 5( a ), when the object 20 is apart from the touch panel 30 by more than one distance, such as but not limited to 2 cm, the dynamic resolution control circuit 10 is in the The 2x3 scan frequency will be maintained during the first stage driving; as shown in FIG. 5(b), when the object 20 is less than 2 cm away from the touch panel 30, the dynamic resolution control circuit 10 will enter the second stage driving. When the object 20 touches the touch panel 30, the touch panel 30 will have a resolution of 6×3, and the touch panel 30 is still divided into 18 sensing blocks, but each sensing block has 10×5 When the update rate is 60 Hz, the dynamic resolution control circuit 10 and the gain control circuit 40 have locked 18 sensing blocks when the object 20 (finger or stylus) touches the touch panel 30. Two (or n) of the detected touch blocks are used. For example, if each sensing block has 10x5 sensing elements, the total scanning detection component required to complete every 1/60 second is 10x5x2 ( Or 10*5*n) times, the dynamic resolution control circuit 10 and the gain control circuit 40 will only process the touch panel 30. Two (or n) of blocks has been detected to the touch, and therefore, can quickly calculate the touch position than does the conventional round-by-point or progressive scan mode.

In addition, as shown in FIG. 6( a ), another embodiment of the present invention is shown. When the object 20 is separated from the touch panel 30 by more than one distance, such as but not limited to 2 cm, the dynamic resolution control circuit is provided. 10 will maintain a 1x1 scan frequency when driving in the first stage; as shown in FIG. 6(b), when the object 20 is less than 2 cm away from the touch panel 30, the dynamic resolution control circuit 10 will enter the second For the principle of phase driving, please refer to the description of FIG. 5(b) above, and the detailed description is not repeated here.

In addition, the present invention also provides a dynamic driving control method for a touch panel, which enables the touch panel to have a dynamic driving control function. Please refer to FIG. 7 , which is a schematic diagram of dynamically controlling the gain of the dynamic driving control method of the touch panel according to another preferred embodiment of the present invention. As shown in FIG. 7, in the case where the distance is the same as that in FIG. 3, the dynamic resolution control and signal gain control circuit 40 of the present invention can be enlarged to enlarge the equivalent capacitance in the sensing block on the touch panel 30. The sensing signal is caused to be greater than the threshold to generate a touch action to improve the sensitivity of the touch panel 30. Wherein the threshold is for example but not limited to a voltage, a current or a pulse number.

The above-mentioned touch panel dynamic driving control method can set different trigger thresholds according to the conditions of the sensing signals after each stage and the action requirements of different operation resolutions.

Referring to FIG. 8( a ) to FIG. 8( b ), FIG. 8( a ) is a schematic diagram showing the operation of the dynamic driving control method of the touch panel according to a preferred embodiment of the present invention in the first stage; FIG. 8 (b) A schematic diagram of the operation of the dynamic driving control method of the touch panel according to a preferred embodiment of the present invention in the second stage.

Taking the two-stage precision driving as an example, as shown in FIG. 8( a ), the dynamic driving control method of the touch panel 30 of the present invention is set to be a comparison when the distance D1 between the object 20 and the touch panel 30 is less than a first distance. The touch condition of the first touch point is detected, and the sensing signal after the first signal gain control process of the dynamic resolution control circuit 10 is higher than the first threshold, and the object is detected. 20 is in the middle, and the touch panel 30 will enter the resolution of the next stage for detection. As shown in FIG. 8(b), the dynamic driving control method of the touch panel 30 of the present invention sets the touch condition of the highest second touch point to detect when the object 20 is in contact with the touch panel 30. The sensing signal after the second signal gain control process of the dynamic resolution control circuit 10 is higher than the first threshold, and the coordinate position where the object 20 touches is detected. Wherein the second touch point will be higher than the first touch point. That is, the dynamic driving control method of the touch panel of the present invention can dynamically adjust the triggering condition of the touch panel 30. The closer the distance is, the higher the touch point will be, and the lower the signal gain will be, so as to reduce noise and can be calculated. Touch the block or coordinate position.

In addition, for the high-sensitivity operation setting of the vertical direction (Z-axis) object proximity detection, please refer to FIG. 9(a) to FIG. 9(c) together, wherein FIG. 9(a) illustrates another preferred embodiment of the present invention. The method for dynamically adjusting the sensitivity of the touch panel has a schematic diagram of high gain operation in the first stage; FIG. 9(b) illustrates the method for dynamically adjusting the sensitivity of the touch panel in another preferred embodiment of the present invention. FIG. 9(c) is a schematic diagram showing the method of dynamically adjusting the sensitivity of the touch panel in the third stage with normal gain operation in another preferred embodiment of the present invention.

As shown in the figure, the method for dynamically adjusting the sensitivity of the touch panel according to another preferred embodiment of the present invention includes the following steps: operating a touch panel 30 in a first stage a first gain, a first scan frequency, and when the object 20 is less than a distance from the touch panel 30, the touch panel 30 enters a second stage (step 1); In the second stage, the touch panel 30 is reduced in unit sensing area and operated under a condition of a second gain and a second scanning frequency, and the sensing block is locked to touch the object 20 with the touch panel 30. Accurate coordinate position calculation at the time of touch.

In the first step, in a first stage, a touch panel 30 is operated under a condition of a first gain and a first scanning frequency (as shown in FIG. 9a), and an object 20 and the touch When the control panel 30 is less than a distance, the touch panel 30 enters a second stage (as shown in FIG. 9b). The distance of the touch panel 30 is, for example but not limited to, 1×1 or 2×3 blocks, so as to achieve high sensitivity and power saving effect.

In the step 2, the touch panel 30 is switched to the minimum unit sensing area (ie, the unit component area of the sensor), so that the touch panel 30 operates under the conditions of low gain and high scanning frequency (as shown in the figure). 9c), to perform accurate position calculation when the object 20 is less than the distance from the touch panel 30. The resolution of the touch panel 30 is, for example but not limited to, 6×3, and the resolution of each block is 10×5. When the object 20 touches the touch panel 30, the sensing point on the sensing area is the unit component size of the sensor, and precise position detection is required. At this time, the touch panel 30 operates at a normal gain (can avoid the system and External noise is amplified) and the value of the high scan frequency is used for accurate touch position calculation.

Please refer to FIG. 10 , which is a block diagram of a touch panel system according to a preferred embodiment of the present invention. As shown, the touch panel system of the present invention comprises: a touch panel 30; a dynamic resolution control circuit 10; an inductive signal gain control circuit 40; an analog to digital conversion circuit 50; a digital signal processor 60; And a controller 70.

The touch panel 30 has a glass 31, an inductor array 32, and a display panel 33. The sensor array 32 is disposed on one side of the glass 31 in a matrix, such as but not limited to The upper side or the lower side of the glass 31 is used to sense the signal change when the object 20 approaches, such as but not limited to voltage, current or pulse number, and the sensor array 32 is, for example but not limited to, mutual capacitance or The number of self-capacitive sensors varies depending on the resolution. For example, when the resolution of the touch panel 30 is 6x3 and the resolution of each block is 10x5, the number of sensors of the sensor array 32 is It is 6x3x10x5. The glass 31 is located on the display panel 33, such as but not limited to a thin film transistor (TFT) display display panel.

The dynamic resolution control circuit 10 is coupled to the sensor array 32. The touch panel 30 has a first resolution and a second resolution, and outputs X and Y coordinate signals when the object 20 is When the touch panel 30 is less than a distance, for example, but not limited to 2 cm, the resolution of the touch panel 30 is changed from the first resolution to the second resolution, for example, but not The second resolution is limited to 1x1 or 2x3, and the second resolution is, for example, but not limited to, 6x3, and the resolution of each block is, for example, but not limited to, 10x5. For the principle, refer to the above description, and no repetitive description is provided herein.

The inductive signal gain control circuit 40 is coupled to the dynamic resolution control circuit 10, and provides a first gain and a second gain corresponding to the first resolution and the second resolution to select the X and Y. The coordinate signal is amplified, wherein the first gain > the second gain, the principle of which is referred to the above description, and is not described herein again.

The analog-to-digital conversion circuit 50 is coupled to the inductive signal gain control circuit 40 to perform analog-to-digital conversion on the amplified X and Y coordinate signals.

The digital signal processor 60 is coupled to the analog to digital conversion circuit 50 for processing X, Y coordinate signals converted into digital form. The digital signal processor 60 further has a digital signal mask unit 61 for providing a 1D Convolution Mask function of the touch panel 30 during the first resolution. The touch panel 2D Convolution Mask function is provided. The digital signal processor 60 is, for example but not limited to, a microcontroller, a digital signal processor, or a system single chip (SOC).

Wherein, the formula of the one-dimensional convolution mask is:

y[n]=Σx[k].h[n-k]

Where y[n] represents the result, Σx[k] represents the A/D conversion result output from the inductive signal gain control circuit 40, and h[n-k] represents the kernel of the one-dimensional mask.

The formula for the two-dimensional convolution mask is:

y(m,n)=ΣΣx(m+i,n+j)h(i,j)

Where y[m,n] represents the result, ΣΣx(m+I,n+j) represents the A/D conversion result output from the inductive signal gain control circuit 40, and h(I,j) represents the two-dimensional mask. The core (kernel).

The controller 70 is coupled to the digital signal processor 60 and can receive the X and Y coordinate signals and transmit the signals to a graphical user interface (GUI) to execute a corresponding command. For example, but not limited to, a system single wafer.

In addition, the touch panel system further includes: a dynamic analog noise filtering unit 80 coupled to the inductive signal gain control circuit 40 and the analog to digital conversion circuit 50, respectively, to provide the first resolution The first-order low-pass filtering function of the touch panel 30 provides a second-order band pass filtering function of the touch panel 30 at the second resolution.

Therefore, the dynamic driving control method of the touch panel of the present invention can dynamically adjust the resolution of the touch panel, dynamically adjust the signal gain of the touch panel, dynamically adjust the scanning frequency of the touch panel, and The trigger condition of the touch panel can be dynamically adjusted. Therefore, the dynamic driving control method of the touch panel of the present invention is indeed more advanced than the conventional projected capacitive touch panel technology.

The disclosure of the present invention is a preferred embodiment. Any change or modification of the present invention originating from the technical idea of the present invention and being easily inferred by those skilled in the art will not deviate from the scope of patent rights of the present invention.

In summary, this case, regardless of its purpose, means and efficacy, is showing its technical characteristics that are different from the conventional ones, and its first invention is practical and practical, and it is also in compliance with the patent requirements of the invention. I will be granted a patent at an early date.

10. . . Dynamic resolution control circuit

20. . . object

30. . . Touch panel

31. . . glass

32. . . Sensor array

33. . . Display panel

40. . . Inductive signal gain control circuit

50. . . Analog to digital conversion circuit

60. . . Digital signal processor

61. . . Digital signal mask unit

70. . . Controller

80. . . Dynamic analog noise filtering unit

200. . . Touch panel

300. . . finger

400. . . Touch panel

Step 1: providing a dynamic resolution control circuit that enables a touch panel to have a first resolution and a second resolution;

Step 2: providing an inductive signal gain control circuit, which can provide a first gain and a second gain corresponding to the first resolution and the second resolution to the touch panel, wherein an object and the When the touch panels are less than one distance apart, the resolution of the touch panel changes from the first resolution to the second resolution.

FIG. 1( a ) is a schematic diagram showing the operation of a conventional projected capacitive touch panel at a distance D1 .

FIG. 1(b) is a schematic diagram showing the operation of a conventional projected capacitive touch panel at a distance D2.

FIG. 1(c) is a schematic view showing the operation of the conventional projected capacitive touch panel at a distance D3.

FIG. 2( a ) is a schematic diagram showing the operation of a conventional self-capacitance driven projected capacitive touch panel with Z-axis sensing.

FIG. 2(b) is a schematic diagram showing the operation of a conventional mutual-capacitance driven projected capacitive touch panel having Z-axis sensing.

FIG. 3 is a schematic diagram showing a conventional driving control method of the touch panel maintaining the original gain at a D1 distance.

4 is a schematic view showing a flow chart of a dynamic driving control method of a touch panel according to a preferred embodiment of the present invention.

FIG. 5( a ) is a schematic diagram showing a dynamic driving control method of a touch panel according to a preferred embodiment of the present invention for maintaining a low scanning frequency during driving in a first stage.

FIG. 5(b) is a schematic diagram showing a dynamic driving control method of the touch panel according to a preferred embodiment of the present invention for maintaining a low scanning frequency during the second stage driving.

FIG. 6( a ) is a schematic diagram showing a dynamic driving control method of a touch panel according to another preferred embodiment of the present invention for maintaining a 1×1 scanning frequency during driving in a first stage.

FIG. 6(b) is a schematic diagram showing the dynamic driving control method of the touch panel according to a preferred embodiment of the present invention becomes 6x3 when driven in the second stage, and each block has a scanning frequency of 10×5 resolution. schematic diagram.

FIG. 7 is a schematic diagram showing a dynamic control gain of a touch panel dynamic driving control method according to a preferred embodiment of the present invention.

FIG. 8( a ) is a schematic diagram showing a first touch point of the dynamic driving control method of the touch panel according to a preferred embodiment of the present invention.

FIG. 8(b) is a schematic diagram showing a second touch point of the dynamic driving control method of the touch panel according to a preferred embodiment of the present invention.

FIG. 9( a ) is a schematic diagram showing a method of dynamically adjusting the sensitivity of the touch panel according to another preferred embodiment of the present invention with high gain operation in the first stage.

FIG. 9(b) is a schematic diagram showing a method of dynamically adjusting the sensitivity of the touch panel according to another preferred embodiment of the present invention with high gain operation in the second stage.

FIG. 9(c) is a schematic diagram showing a method of dynamically adjusting the sensitivity of the touch panel according to another preferred embodiment of the present invention with normal gain operation in the third stage.

FIG. 10 is a schematic diagram showing a block diagram of a touch panel system according to a preferred embodiment of the present invention.

Claims (23)

A dynamic driving control method for a touch panel includes the following steps: providing a dynamic resolution control circuit that enables a touch panel to have at least one first block in a first stage, each of the first blocks And a first plurality of basic sensing elements are connected to provide a first sensing degree, and a plurality of second blocks are connected in a second stage, and each of the second blocks is connected with a second plurality of basic sensing The component provides a second sensitivity, wherein the first sensitivity is higher than the second sensitivity; and an inductive signal gain control circuit is provided, which can provide one of the first phase and the second phase Gain and a second gain to the touch panel, wherein when an object is less than a distance from the touch panel, the dynamic resolution control circuit enters the second phase from the first phase and is only approached At least one of the second blocks is further scanned. The dynamic driving control method of the touch panel according to claim 1, wherein the distance is 2 cm. The dynamic driving control method of the touch panel of claim 1, wherein the touch panel has 2×3 of the first block in the first stage, and 6×3 of the first stage in the second stage. Two blocks, and each of the second blocks is connected with 10x5 basic sensing elements. The dynamic driving control method of the touch panel of claim 1, wherein the touch panel has 1×1 of the first block in the first stage and 6×3 of the first stage in the second stage. Two blocks, and each of the second blocks is connected with 10x5 basic sensing elements. The dynamic driving control method of the touch panel of claim 3, wherein the dynamic resolution control circuit further provides an induction when the object touches the touch panel. The maximum resolution of the device is operated at the minimum unit area of the sensor for accurate coordinate detection of the touch position. The dynamic driving control method of the touch panel according to claim 5, wherein the touch panel has high sensitivity and low scanning during the first stage At the second stage, the touch panel has low sensitivity and high scanning frequency. The dynamic driving control method of the touch panel of claim 1, wherein the gain control circuit is an analog to digital conversion (ADC) gain control circuit, the first gain> the second gain. The dynamic driving control method of the touch panel according to the first aspect of the invention, wherein the object is a stylus with a finger or a tip. The dynamic driving control method of the touch panel according to the first aspect of the invention, wherein the gain control circuit further enlarges the induction of the equivalent capacitance in a sensing block on the touch panel in a case where the distance is constant. The signal is caused to be greater than a threshold to generate a touch action to increase the sensitivity of the touch panel, wherein the threshold is a voltage, a current, or a pulse number. The dynamic driving control method of the touch panel of claim 1, wherein the gain control circuit further maintains a first critical value of one of the touch points in the first phase, and in the second phase, the boosting The touch point is to a second threshold. The dynamic driving control method of the touch panel according to claim 10, wherein the first threshold value <the second threshold value enables the resolution and the trigger value of the touch panel to dynamically change with distance. A method for dynamically adjusting the sensitivity of a touch panel includes the following steps: in a first stage, a touch panel has at least one first block, and each of the first blocks is connected with a first plurality of basic The sensing component provides a first sensitivity, operates at a first gain, a first scanning frequency, and enters the touch panel when an object is less than a distance from the touch panel a second stage; and in the second stage, the touch panel has a plurality of second blocks, each of the second blocks being connected to the second plurality of basic sensing elements to provide a second degree of sensitivity reduction The unit senses the area and operates on a second gain and a second scan frequency. And, the sensing block is locked, so that only at least one of the second blocks that are approached is further scanned to perform accurate coordinate position calculation when the object touches the touch panel. A method for dynamically adjusting the sensitivity of a touch panel as described in claim 12, wherein the distance is 0.5 cm. The method of dynamically adjusting the sensitivity of the touch panel according to claim 12, wherein in the first stage, the touch panel has 2×3 of the first block, and in the second stage, the second stage The touch panel has 6×3 of the second blocks, and each of the second blocks is connected with 10×5 basic sensing elements. The method for dynamically adjusting the sensitivity of a touch panel according to claim 12, wherein the touch panel has 1×1 of the first block in the first stage, and in the second stage, the second stage The touch panel has 6×3 of the second blocks, and each of the second blocks is connected with 10×5 basic sensing elements. A touch panel system includes: a touch panel having a glass, an array of sensors, and a display panel, wherein the sensor array is disposed on one side of the glass in a matrix form for sensing When the object is close to the signal, the glass is located on the display panel; a dynamic resolution control circuit is coupled to the sensor array, so that the touch panel has at least one first block in a first stage and The second stage has a plurality of second blocks, and outputs X and Y coordinate signals. When the object is less than a distance from the touch panel, the dynamic resolution control circuit enters the first stage by the first stage. a second stage; an inductive signal gain control circuit coupled to the dynamic resolution control circuit to provide a first gain and a second gain corresponding to the first phase and the second phase to coordinate the X and Y coordinates The signal is amplified; a analog-to-digital conversion circuit is coupled to the inductive signal gain control circuit to perform analog-to-digital conversion on the amplified X and Y coordinate signals; and a digital signal processing Coupled to such ratio to-digital converter, to be transferred The X and Y coordinate signals are replaced by digital signals; and a controller coupled to the digital signal processor can receive the X and Y coordinate signals and transmit the signals to a graphical user interface to perform corresponding operations. Instructions. The touch panel system of claim 16, wherein the distance is 2 cm. The touch panel system of claim 16, wherein the touch panel has 2×3 of the first block in the first stage and 6×3 of the second area in the second stage. And each of the second blocks is connected in parallel with 10×5 basic sensing elements. The touch panel system of claim 16, wherein the touch panel has 1×1 of the first block in the first stage and 6×3 of the second area in the second stage. And each of the second blocks is connected in parallel with 10×5 basic sensing elements. The touch panel system of claim 18 or 19, wherein the first gain > the second gain. The touch panel system of claim 16, wherein the object is a stylus with a finger or a tip, and the sensor array is disposed on the upper side or the lower side of the glass, and the signal is voltage, Current or number of pulses. The touch panel system of claim 16, further comprising a dynamic analog noise filtering unit coupled to the inductive signal gain control circuit and the analog to digital conversion circuit, respectively, for In the resolution, the first-order low-pass filtering function of the touch panel is provided, and at the second resolution, the second-order band-pass filtering function of the touch panel is provided. The touch panel system of claim 22, wherein the digital signal processor further has a digital signal masking unit coupled to the dynamic analog noise filtering unit, so that in the first phase, The touch panel one-dimensional convolution mask function is provided. In the second stage, the touch panel two-dimensional convolution mask function is provided.